Machine for deforming the edge of an article



- Dec. 10, 1940; BRENZWGER 2,224,666

MACHINE FOR DEFORMING THE EDGE OF AN ARTICLE Fi led Nov. 13, 1937, 8 Sheets-Sheet l 14 O 427'"? 7/ 3-1 {g 4 I g 0 Q) 9 42/ Mr Mm 55.... WW 6.

I a F Fi "1". l I: F E '|"i 1 5 353 L 52 L 5;? I E J i F I 54 2 v c 5 t J: 1

INVENTORV flights fireizzz'lggzr ATTORNEY Dec. 10, 1940.

J. BRENZINGER' MACHINE FOR DEFORMING THE EDGE OF AN ARTICLE Filed NOV. 13, 1937 8 Sheets-Sheet 2 INVENTOR afius Zrmzmgz' r Y ATTORNEY Dec. 10, 1940. .1. BRENZINGER MACHINE FOR DEFORMING THE EDGE' OF AN ARTICLE Filed Nov. 13, 1937 8 Sheets-Sheet 3 INVENTOR Jain/s fire/ nigger BY m ATTORNEY Dec. '10,- 1940. J. BRENZINGER 5 MACHINE FOR DEFORMING THE EDGE OF AN ARTICLE Filed Nov. 13, 1937 8 Sheets-Sheet 4 INVEN'I 'OR JZz/aa firmzz ATTORNEY 9 J. BRENZINGER MACHINE FOR DEFORMING THE EDGE OF AN ARTCLE Filed Nov. 13, 195"! 8 Sheets-Sheet 5 ElNVENTOR I Jufim firezzzzlagzr BY ATTORNEY Dec. 10, 1940. J. BRENZINGER MACHINE FOR DEFORMING EDGE OF AN ARTICLE Filed NOV. 13, 1937 8 Sheets-Sheet 6 1 III III:

' ATTORNEY Dec. 10, 1940; BRENZWGER 2,224,666

MACHINE FOR DEFORMING THE EDGE OF AN ARTICLE Filed Nov. 13, 19:57 a Sheets-Sheet] I INVENTQR Julius Brenzfl gfer ATTORN EY Dec. 10, 1940. J. BRENZINGER 2 24,666,

MACHINE FOR DEFORMING THE EDGE OF AN ARTICLE Filed Nov. 13, 19:57 a Sheets-Sheet s ATTORN EY Patented Dec. 10, 1940 UNITED STATES PATENT OFFICE MACHINE FOR DEFORMING THE EDGE OF AN ARTICLE.

Application November 13, 1937, Serial No. 174,284

9 Claims.

and-out movement, so that the construction of the device can be greatly simplified.

In the accompanying drawings the invention is disclosed in several concrete and preferred forms in which:

Fig. 1 is an end view of a machine looking in,

the direction of arrow I of Figs. 3 and 4, with parts broken away;

Fig. 2 is a detail view looking in the direction of arrow 2 of Fig. 1;

Fig. 3 is a sectional top plan view substantially on the plane of line 3-3 of Fig. 1;

Fig. 4 is a side elevation looking in the direc- 25 tion of arrow 4 of Fig. 3, with parts broken away;

Fig. 5 is a vertical sectional view substantially on the plane of line 55 of Fig. 4;

Fig. 6 is a vertical sectional View through the curling head and adjacent parts substantially on the plane of line 6-45 of Fig. 9;

Fig. '7 is a bottom plan view of the curling head looking in the direction of arrow 1 of Fig. 8;

Fig. 8 is a sectional view substantially on the plane of line 88 of Fig. '7;

Fig. 9 is a view similar to Fig. 7 but with the parts in a different position;

Figs. 10 to 16 inclusive are diagrammatic views showing the progress of the curling operation;

Figs. 1'7 to 20 inclusive show a different form 40 of the invention;

Fig. 1'7 is a bottom plan view of a seamer head, with parts in section; and 7 Figs. 18-20 are somewhat diagrammatic views showing the progress of the seaming operation.

The example chosen to illustrate the invention in Figs. 1 to 16 inclusive is that of a device to give a preliminary curl to the edge of a non-circular can-end, so that the can-ends can be properly stacked for subsequent separation in a canend feeding device for seaming machines. Referring more particularly to Figs. 6 t0 9 inclusive, l indicates a non-circular can-end which, before being acted upon by the deforming rollers has a fiat flange 2 (Figs. 7 and 8) which is to be deformed to provide it with a curl as at 3 (Figs.

6 and 9). In the form of the invention here under consideration, two deforming rollers 4 are employed, each of said rollers having a deforming surface 5 provided with a non-operation gap 6, said gap being of a contour to avoid engagement 5 with the work to be deformed, and said surface and said gap being arranged in substantially the same plane perpendicular to the axis of the roller. It will now be apparent that, when said gaps are adjacent the articles (Figs. 7 and 8), can-end l l or other article can be moved with respect to deforming surface 5, here a curling surface, either for the purpose of positioning said can-end so that it can be acted upon by the rollers or for the purpose of removing it from the machine after it has been acted upon, and that it can be so moved without the necessity of effecting any inand-out movement of the rollers. v

The underlying principle of the invention now being understood, a more detailed description of 20 the device will be given.

Any suitable means can be provided to eifect a relative rotative movement of the article and rollers and this, in accordance with expedients well-known in the art may be accomplished by rotating the article or work and revolving the rollers around the work; by rotating the work without any travel of the rollers around the work; or as in the present instance by having the work stand still and causing the rollers to travel around the work. In the present instance the work is clamped between a stationary head 1 and a movable pedestal 8. The work is advanced along table 9 and is placed upon the pedestal when said pedestal is in its lower positionfiush with table 9, after which the pedestal rises and clamps the work against stationary head 1. indicates a rotatable head carrying deforming or curling rollers 4, said rollers being mounted on fixed centers of rotation indicated at II. By 4.0 fixed centers of rotation it is not intended to convey that these rollers may not be adjustable as for instance to accommodate the machine to different diameters of can-ends; it is only intended to make clear that the rollers are devoid of the heretofore usual in-and-out movement to permit introduction and removal of the work. Head It! can be rotated by any suitable means as by bevel gears l2 and I3, the latter mounted on shaft B. M indicates an ejecting member. The means for rotating the rollers about their own axes consist here of gears I5 fixed to said rollers and meshing with a central, stationary gear [6. Gears I5 and it are of equal diameter and consequently each rotation of head l0, causing one 55,

revolution of the rollers about the work, will effect two rotations of the rollers about their own axes. to illustrate the action that takes place. Fig. 10 shows the work in position when the gaps are adjacent the work and before the curling action begins, the same position being shown in Figs. '1 and 8. The movement and action of one of the rollers can now be followed through the successive positions in Figs. 11 to 16. In Fig. 11 the curling surface has not yet commenced to act on the can-end, but in Fig. 12 the beginning of the curling action is shown and this action continues as shown in Figs. 13 to 16. In Fig. 16 the roller shown has completed its share of the curling operation and occupies a position diametrically opposite to that shown in Fig. 12. Meanwhile the other roller has acted upon the other half of the work and it will be understood that there is a slight over-lapping of the action of the two rollers so that the entire edge of the work has been curled. Fig. 9 shows the same position as Fig. 16 and illustrates the complete curling action. The thereafter continued movement of the rollers now brings the gaps back adjacent the work, that is, to the position indicated in Figs. 7 and 10. The rollers have therefore acted simultaneously on the work, each deforming a part of the edge of the work and all acting to effect a complete deformation or curling of the entire edge. If bevel gear 13 is driven by means of a Geneva or other intermittent device, there will be a pause of the rollers when the gaps come adjacent the work to permit the removal of the finished work and the introduction of a new piece of work, in which case a can-end would be completed once to each revolution of head ID or rather one revolution of head I!) would complete one cycle of the machine. It is preferred, in the present instance, to have head 10 rotate continuously, to introduce the work during one revolution of head l0 and to remove it during the next revolution, so that the machine has an idle revolution so far as deforming the work is concerned or, more properly speaking, each cycle of the machine consists of two revolutions of head Hi.

In Figs. 1 to 5 inclusive isshown a completely automatic machine in which the parts already described may be embodied. The center of the curling station, that is at which the curling operation previously described takes place, is indicated at A in Figs. 3 and 5 and the shaft that carries bevel gear I3 is indicated at B in Figs. 1 and 6. The other instrumentalities that go to make up the machine are here as follows: 11 is a feed dial of conventional form having pockets [8 to receive the can-ends and to slide them over feed table 9 so as to carry them from one station to another. Feed dial I1 is mounted on upright shaft [9 and is here actuated step by step by means of Geneva wheel 20 actuated intermittently by crank 2| mounted on upright shaft 22 which latter is driven by bevel gears 23 from cam shaft 24. Adjacent one side of the machine is a can-end or cover hopper 25 and associated with this is a cover separating device consisting of two transverse slides 25 operated by a system of links 21 having a fixed center at 28 and actuated by a roller 29 engaging cam 30 on cam shaft 24. 31 is a cover feeding device, here in the form of a longitudinal slide operated by a system of levers 32 having a fixed center at 33 and actuated by crank pin 34 on gear 35 carried by stud shaft 36. Gear 35 meshes with a gear 31 on cam shaft 24 and derives its motion therefrom. Pedestal 8 is In Figs. 10 to 16 are shown various steps raised and lowered from cam 38, on shaft 24, by means of a bell-crank 39 pivoted at 40 and connected to the pedestal by means of link 4 I. tor I4 is normally held in its upper position by spring 42 (Fig. 2) and is moved downwardly by means of suitable connections 43 from rod 44 which latter is actuated by lever 45 pivoted at 46 and actuated by cam 41. A delivery mechanism, located at that side of the machine which is opposite to the feeding mechanism, is here shown in the form of a group of screw threaded members 48 of well-known construction and which by their rotation feed the curled can-ends in an upward direction. Members 48 are intergeared and the shaft 49 of one of them is driven from countershaft 50 by means of worm 5i and worm wheel 5l Power is here derived from motor 52 which drives main shaft 53 by means of pinions 54, chains 55, gears 56 and clutch 51 operated by handle 58. Motion is transmitted from the main shaft to shaft 50 of the delivery mechanism by means of pinions 59, chains 60 and gears Bl. Motion is transmitted from main shaft 53 to cam shaft 24 by means of pinions 62, chains 63 and gears 64. Power is transmitted from main shaft 53 to shaft B, that drives head Ill, by means of gears 65, chains 66 and gears 61.

The general operation of the machine is as follows: The cover, after being separated from the stack, is fed by feeding device 3| to table 9 where it is taken in one of the pockets of dial l1 and is thence carried to station A by a step-bystep movement, is then acted upon by the curling device, is then returned to table 9 and again carried by feed dial I1 until it reaches opening 68 when it drops into inclined chute 69 and is carried to delivery mechanism 48.

Turning now to that form of the invention which is shown in Figs. 17 to 20 inclusive, it will be apparent from the disclosure already made that the deforming rollers need not necessarily be curling rollers but can be seaming rollers for uniting a can-end such as 10 with a can body such as 1|. 12 indicates a rotatable seaming head, that corresponds to head III previously described, and carries four seaming rollers 13 rotatable about their own axes and carrying each a gear 14 that meshes with a central stationary gear 15. 85 is a fragmentary portion of a pedestal similar to 8 in the first form of the invention to support the can body and end. As, in this instance, it is desired to perform both a first and second seaming operation, each roller is provided with a non-operating gap 16 to admit of the introduction and removal of the work, with a first-operation seaming surface 11 and with a second-operation seaming surface 18. As in the first form of the invention, the gap is of a contour to avoid engagement with the work to be seamed, and said surfaces and said gap are arranged in substantially the same plane perpendicular to the axis of the roller. From this it will be seen that rotation of the parts will cause the seaming rollers to-engage the work simultaneously and that each roller will curl a portion of the can and can-end as shown in Fig. 19 and that, thereafter each roller will act upon a portion of the can and can-end different from that previously acted upon by said roller to flatten the seam as indicated in Fig. 20.

I claim:

1. seaming mechanism including: a plurality of seaming rollers each of which has a first-operation seaming surface, a second-operation seaming surface and a non-operating gap all arranged in substantially the same plane perpendicular to the axis of the roller; means to cause the seaming rollers to simultaneously engage the work to perform a first-seaming operation, each roller acting only on a certain portion of the work, and thereafter to engage the work to effect a secondseaming operation, each roller engaging a portion of the work different from that engaged by it during the first-seaming operation.

2. Seaming mechanism including: a plurality of seaming rollers arranged around, but devoid of an in-and-out movement toward and away from, the work to be seamed, each of which rollers has a first-operation seaming surface, a second-operation seaming surface and a non-operation gap all arranged in substantially the same plane perpendicular to the axis of the roller; means to effect a relative rotative movement of the work and rollers; and means to rotate the rollers about their own axes with the gaps of all the rollers in the same position circLm-lferentially with respect to the edge of said work.

3. Mechanism to deform an edge of a sheetmaterial article including: a plurality of deforming rollers, mounted on fixed centers of rotation arranged around said article, to act simultaneously on different portions of the edge of said article, each of said rollers having a deforming surface provided with a non-operation gap, said gap being of a contour to avoid engagement with the work to be deformed, said surface and gap being arranged in substantially the same plane perpendicular to the axis of the roller; means to effect a relative rotative movement of the article and rollers; means to simultaneously rotate the rollers about their own axes with the gaps of all the rollers in the same position circumferentially with respect to the edge of said article to thereby deform the entire edge of said article by the action of each roller on only a portion of said edge.

4. Mechanism to deform an edge of a sheetmaterial article including: a plurality of deforming rollers arranged around, but devoid of an in-and-out movement toward and away from, said article, each of which rollers has a deforming surface provided with a non-operation gap, said deforming surface and said non-operation gap being arranged in substantially the same plane perpendicular to the axis of the roller; means to effect a relative rotative movement of the article and rollers; and means to rotate the rollers about their own axes with the gap of all the rollers in the same position circumferentially with respect to the edge of said article.

5. Mechanism to curl the edge of a can-end of sheet-material including: a plurality of rollers arranged around, but devoid of an in-and-out movement toward and away from, said can-end, each of which rollers has a curling surface provided with a non-operation gap, said curling surface and said non-operation gap being arranged in substantially the same plane perpendicular to the axis of the roller; means to effect a relative said seaming surface and said gap being arranged in substantially the same plane perpendicular to the axis of the roller; means to effect a relative rotative movement of the work and the rollers; and means to rotate the rollers about their own axes with the gaps of all the rollers in the same position circumferentially with respect to the edge of said work.

'7. Mechanism to deform an edge of a sheetmaterial article including: a plurality of deforming rollers arranged around, but devoid of an inand-out movement toward and away from, said article, each of which rollers has a deforming surface provided with a non-operation gap, said deforming surface and said non-operation gap being arranged in substantially the same plane perpendicular to the axis of the roller; means to effect a relative rotative movement of the article and rollers; and means to rotate the rollers about their own axes twice to each relative revolution of the article and rollers, with the gaps of all the rollers in the same position circumferentially with respect to the edge of said article.

8. Mechanism to curl the edge of a can-end of sheet-material including: a plurality of rollers arranged around, but devoid of an in-and-out movement toward and away from, said can-end, each of which rollers has a curling surface provided with a non-operation gap, said curling surface and said non-operation gap being arranged in substantially the same plane perpendicular to the axis of the roller; means to effect a relative rotative movement of the can-end and rollers; and means to rotate the rollers about their own axes twice to each relative revolution of the canend and rollers, with the gaps of all the rollers in the same position circumferentially with respect to the edge of said can-end.

9. Seaming mechanism including: a plurality of seaming rollers arranged around, but devoid of an in-and--out movement toward and away from, the work to be seamed, each of which rollers has a seaming surface provided with a gap, said seaming surface and said gap being arranged in substantially the same plane perpendicular to the axis of the roller; means to effect a relative rotative movement of the work and the rollers; and means to rotate the rollers about their own axes twice to each relative revolution of the work and rollers, with the gaps of all the rollers in the same position circumferentially with respect to the edge of said work.

JULIUS BRENZINGER. 

